| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1103 by topic | |
| Leaders | |
| Political entities - State leaders - Religious leaders | |
| Birth and death categories | |
| Births – Deaths | |
| Establishments and disestablishments categories | |
| Establishments – Disestablishments | |
| Art and literature | |
| 1103 in poetry | |
| Gregorian calendar | 1103 MCIII |
| Ab urbe condita | 1856 |
| Armenian calendar | 552 ԹՎ ՇԾԲ |
| Assyrian calendar | 5853 |
| Bengali calendar | 510 |
| Berber calendar | 2053 |
| English Regnal year | 3 Hen. 1 – 4 Hen. 1 |
| Buddhist calendar | 1647 |
| Burmese calendar | 465 |
| Byzantine calendar | 6611–6612 |
| Chinese calendar |
壬午年 (Water Horse) 3799 or 3739 — to — 癸未年 (Water Goat) 3800 or 3740 |
| Coptic calendar | 819–820 |
| Discordian calendar | 2269 |
| Ethiopian calendar | 1095–1096 |
| Hebrew calendar | 4863–4864 |
| Hindu calendars | |
| - Vikram Samvat | 1159–1160 |
| - Shaka Samvat | 1024–1025 |
| - Kali Yuga | 4203–4204 |
| Holocene calendar | 11103 |
| Igbo calendar | 103–104 |
| Iranian calendar | 481–482 |
| Islamic calendar | 496–497 |
| Japanese calendar |
Kōwa 5 (康和5年) |
| Javanese calendar | 1008–1009 |
| Julian calendar | 1103 MCIII |
| Korean calendar | 3436 |
| Minguo calendar | 809 before ROC 民前809年 |
| Nanakshahi calendar | −365 |
| Seleucid era | 1414/1415 AG |
| Thai solar calendar | 1645–1646 |
Year 1103 (MCIII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar.